That makes a good choice if you’re building something new from scratch, but also when you’re trying to integrate it into an existing application with lots of existing markup. The plugin comes bundled with a useful set of validation methods, including URL and email validation, while providing an API to write your own methods.
Jquery Cheat Sheet. jQuery UI. jQuery UI offers a combination of interaction, effects, widgets, utilities, and themes designed to work well together or on their own.